(secretly) allow diff-"accuracy" -1 ("-A-1") to skip Mdiff
(secretly) allow diff-"accuracy" -1 ("-A-1") to skip Mdiff

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb